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Author Question: When an action requires physical effort, you should A) use the largest muscles or groups of ... (Read 29 times) |
Blood is approximately twice as thick as water because of the cells and other components found in it.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.